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(No Model.)

E. G. GOODRIOH- & JQW. JOHNSON.

Hpt Air Stove. No. 243,548.

Patented June 28-, 1881.;

N. Prrzns. PlmTO-L'rlbagnpher. Waihlnglum D. c.

UNITED STATES PATENT Oratorio.

EGBERT O. GOODBIOH, OF PONTIAC, MICHIGAN, AND JOHN W. JOHNSON,

OF MORAVIA, NEW YORK.

HOT-AIR STOVE.

SPECIFICATION forming part of Letters Patent No. 243,548, dated June 28,1881.

Application filed Apn'l 22, 1881. (N0 model.)

To all whom it may concern:

Be it known that we, EGBERT O. GoonRIcH,

.of Pontiac, Oakland county, Michigan, and

JOHN W. JOHNSON, of Moravia, in the county of Cayuga, and in the Stateof New York, have invented certain new and useful Improvements inHot-Air Stoves and we do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,making part of this specification.

This invention relates to certain improvements in that class of stovesor furnaces which are intended to supply heated air to a room orapartments above the room in which said stove or furnace is located. 7

The invention may also be applied with advantage in manufacturingestablishments, where it is necessary to employ large steamgenerators,to economize waste heat from the same for heating the various parts ofthe buildmg.

The invention has for its objects to provide an improved means whereby acontinuous current of thoroughly heated and moistened air may besupplied to the room or rooms above which the stove is located, and toprovide for conveniently and expeditiously renewing the parts of the airconveying and heating devices when injured by the intense heat of thefire, as more fully hereinafter specified. These objects are attained bythe apparatus and devices illustrated in the accompanying drawings, inwhich- Figure 1 represents a view, partly in section and partly inelevation, of my improvement. Fig. 2 represents a detached view of aportion of the same. Fig. 3 represents a detached view of thedistributing-pipe, showing the means of discharging the heated air indifferent directions; and Fig. 4, a view of the grate detached.

The letter A indicates the stove or heater, which is preferably of theclass known as magazine-stoves. This may be of any suitable size anddesign.

B indicates the magazine, 0 the fire-pot, E the ash-pit, and F the base,of the stove, all of which may be of the ordinary construction.

The letter G indicates a heating-chamber,

consisting of a shell of cast-iron or other suitable material, which iselliptical or approximating thereto in vertical section, and which'heatingchamber G, in such position that it will be directly in thecenter and hottest part of the fire-pot, where it will be alwayssurrounded by incandescent fuel. The lower end of the pipe I extendsthrough the floor, or is otherwise carried outside of the room, andcommunicates with the external air. The said .pipemay be provided with abranch, M, leading into the room, the branch being provided with asuitable damper, by means of which air may be taken from the roomdirectly, instead of from the outside.

, The letter N indicates a pipe detachablysecured to the upper end ofthe chamber G, and extending vertically up into the magazine to near thetop, where it is bent horizontally and passed through ,the walls of thestove, and then upwardly and extended to the room or rooms above.

The letter P indicates an annular water-chamber surrounding the pipe Nabove its second bend, and communicating with the interior of said pipeby means of suitable apertures, R, to supply steam to the heated air, inorder to moisten it.

The letter S indicates a series of radial partitions located in theupper part of the. pipe N, for distributing the heated air in difierentdirections, as indicated by the arrows.

The grate consists of an annulus, T, supported upon lugs U in the stove,and provided with sections V, having radiating grate-bars. Thesesections are provided with lugs W, which set in recesses Y in one sideof the annulus, and with projecting lugs A, which set through theelongated recesses B on the opposite side of the annulus.

The letter 0 indicates lugs which support I the grate sections when up.The grate is dumped by shifting the lugs A so as to release the sectionsfrom the lugs G, the parts of the grate dropping at each side of thehori- 5 zontal portion of the pipe I, the said horizontal portion beingon a line with the parting of the grate for the purpose.

Having thus fully described our invention, what we claim, and desire tosecure by Let- IO ters Patent, is-

1. In combination, the pipe I, chamber G, hot-air tube N, and grate D,divided as described, and adapted to drop at each side of the horizontalportion of the pipe I, substan- 15 tially as specified EGBERT G.GOODRICH. JOHN W. JOHNSON.

Witnesses:

H. AUBREY ToULMIN, BURT H. BOWEN.

